The question is incomplete, the complete question is:
Which option is a microscopic property that helps determine whether or not two substances will dissolve with each other? (1 point)
A. state of matter
B. volume
C. molecular mass
D. polarity
The microscopic property that helps determine whether or not two substances will dissolve with each other is polarity.
A molecule is said to be polar if that molecule possesses a dipole moment. This also means that the molecule has a positive end and a negative end. A typical example of such a molecule is water.
In chemistry, the general rule is that like dissolves like. A polar substance dissolves a polar substance and vice versa.
Therefore we can see that, a microscopic property that helps determine whether or not two substances will dissolve with each other is polarity.
Learn more: brainly.com/question/1946554
Answer: Paramagnetism is most easily observed in the salts of some of the first row transition metals (manganese through nickel). The se metal ions have unpaired electrons in degenerate d orbitals as predicted by Hund's rule and thus exhibit paramagnetism.
Explanation: METALS ARE ELECTRONS
AND PARAMAGNETIC OBSERVES SALT FORST ROWS ONLY
Moles of oxygen = mass/molar mass of O2 = 8/31.998 = 0.25 moles.
Number of particles = moles x 6.02 x 10^23 = 0.25 x 6.02 x 10^23 = 1.505 x 10^23 particles.
Hope this helps!
